Investigate the Route of Chaos Induced Instabilities in Power System Network
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 7
Abstract
In this paper possible causes of various instability and chances of system break down in a power system network are investigated based on theory of nonlinear dynamics applied to a Power system network. Here a simple three bus power system model is used for the analysis. First the routes to chaotic oscillation through various oscillatory modes are completely determined. Then it is shown that chaotic oscillation eventually leads to system break-down characterized by collapse of system voltage and large deviation in Generator rotor angle (angle divergence), also known as chaos induced instability. It has been shown that chaos and chaos induced instability in Power system take place due to the variation in system parameters and the inherent nonlinear nature of the power system network. The relation between chaotic oscillation and various system instabilities are discussed here. Using the simple power system model, here it is shown that how chaos leads to voltage collapse and angle divergence, taken place simultaneously when the stability condition of the chaotic oscillation are broken. All nonlinear analysis is implemented using MATLAB. It is indicated that there is a maximum lodability point after which the system enters into instability modes. All these studies are helpful to understand the mechanism of various instability modes and to find out effective anti-chaos strategies to prevent power system instability.
Authors and Affiliations
Swarnankur Ghosh , Dr. G. K. Panda , Dr. P. K Saha , Avishek Ghose Roy , Indrajit Koley
Keywords
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